Initial revision

1 files changed, 88 insertions, 0 deletions

diff --git a/xc/programs/Xserver/hw/sunAmoeba/sunAmScreen.c b/xc/programs/Xserver/hw/sunAmoeba/sunAmScreen.c
new file mode 100644
index 000000000..35a8c5a2f
--- /dev/null
+++ b/xc/programs/Xserver/hw/sunAmoeba/sunAmScreen.c
@@ -0,0 +1,88 @@
+/* $XConsortium: sunAmScreen.c,v 1.1 94/04/01 17:55:13 dpw Exp $ */
+/*
+ * Copyright 1993 Vrije Universiteit, The Netherlands
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the Vrije Universiteit not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  The Vrije Universiteit makes no
+ * representations about the suitability of this software for any purpose.
+ * It is provided "as is" without express or implied warranty.
+ *
+ * THE VRIJE UNIVERSITEIT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE VRIJE UNIVERSITEIT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is the code that Amoeba uses to probe and map in a sun bitmap display.
+ */
+
+#include "sun.h"
+
+#include "amoeba.h"
+#include "cmdreg.h"
+#include "stderr.h"
+#include "ampolicy.h"
+#include "proc.h"
+#include "server/iop/iop.h"
+
+bufptr
+sunMapAmoebaScreen(cap, nbytes)
+    capability	*cap;
+    int		nbytes;
+{
+    static char	*addr;
+    segid	seg;
+    char	*findhole();
+
+    if (addr) return addr;
+
+    /* First find a place to map in the segment: */
+    addr = findhole(nbytes);
+    seg = seg_map(cap, addr, nbytes, MAP_TYPEDATA|MAP_READWRITE|MAP_INPLACE);
+    if (seg < 0) {
+	ErrorF("Xsun: map_segment(bitmap) %x %x: %s\n",
+				addr, nbytes, err_why(ERR_CONVERT(seg)));
+	return NULL;
+    }
+
+    return addr;
+}
+
+extern capability iopcap;
+
+int
+sunAmoebaScreen(screen, name, depth)
+    IOPFrameBufferInfo	*screen;
+    char		*name;	 /* The name of the device we want to find */
+    unsigned short	depth;	 /* framebuffer depth we expect to find */
+{
+    errstat err;
+
+    if ((err = iop_framebufferinfo(&iopcap, screen)) != STD_OK) {
+	ErrorF("Xsun: get frame buffer info failed: %s\n", err_why(err));
+	return 0;
+    }
+
+    if (screen->xmm <= 0 || screen->ymm <= 0) {
+	ErrorF("X or Y dimensions of screen <= 0\n");
+	return 0;
+    }
+    if (screen->depth != depth ||
+		strncmp(name, screen->name, IOPNAMELEN) != 0) {
+	return 0;
+    }
+
+    /* printf("Screen information: width %d, height %d, stride %d\n",
+	      screen->width, screen->height, screen->stride); */
+
+    return 1;
+}